Biological composite filler for treating livestock wastewater, preparation method and application of biological composite filler

A biocomposite filler and waste water technology, which is applied in the field of livestock and poultry breeding waste water treatment, can solve problems such as difficult treatment, achieve the effect of improving the effect, low cost of raw material sources, and solving difficult treatment problems

Inactive Publication Date: 2015-01-07
贵州都匀市黔昌畜牧发展有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the fact that the existing livestock and poultry wastewater treatment cannot solve the problems of high metal content, nitrogen and phosphorus content and heavy odor during the treatment process, the present invention provides a biological composite filler for treating livestock and poultry wastewater and its preparation method and application. The biological composite filler has a porosity and The filler has high mechanical strength, and can absorb a large amount of phytate phosphorus, residual veterinary drugs (antibiotics), urea, suspended solids and other macromolecular nutrients in the wastewater after being put into livestock and poultry wastewater, as well as copper, iron, zinc and other metal elements, and the biofilm hangs The membrane performance is strong, and it also has a disinfection effect while adsorbing, and can kill pathogens in wastewater, effectively solving the problem of difficult livestock wastewater treatment

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0042] A preparation method of a biocomposite filler for treating livestock and poultry wastewater, the steps are as follows:

[0043] (1) Washing and air-drying wheat straw and soybean straw, cutting them into granules with a length of 8-10 mm, selecting wheat straw and soybean straw according to a mass ratio of 4:1 and mixing them to obtain granular mixed straw;

[0044] (2) heating and pyrolyzing the above-mentioned granular mixed straw in anaerobic or oxygen-free environment, the pyrolysis temperature is 290°C, the pyrolysis time is 1 hour, and cooling after pyrolysis to obtain the pyrolyzed mixed straw;

[0045] (3) Weighing diammonium phosphate and water configuration concentration is 135g / L (NH 4 ) 2 HPO 4 Solution (the amount of solution can submerge the mixed stalks, the present embodiment has configured 100kg of solution, and mixed stalks have prepared 230kg);

[0046] (4) The mixed straw after pyrolysis in step (2) is put into the (NH 4 ) 2 HPO 4 In the soluti...

Embodiment 2

[0058] A preparation method of a biocomposite filler for treating livestock and poultry wastewater, the steps are as follows:

[0059] (1) Wash and air-dry the wheat straw and soybean straw and cut them into particles with a length of 9-13 mm, and mix the wheat straw and soybean straw according to the mass ratio of 3:1 to obtain granular mixed straw;

[0060] (2) heating and pyrolyzing the above-mentioned granular mixed straw in anaerobic or oxygen-free environment, the pyrolysis temperature is 230° C., the pyrolysis time is 1.5 hours, and cooling after pyrolysis to obtain the pyrolyzed mixed straw;

[0061] (3) Weighing diammonium phosphate and water configuration concentration is 150g / L (NH 4 ) 2 HPO 4 Solution (the amount of solution can submerge the mixed straw, the present embodiment has configured 100kg of solution, and mixed straw has prepared 250kg);

[0062] (4) The mixed straw after pyrolysis in step (2) is put into the (NH 4 ) 2 HPO 4 In the solution, shake fo...

Embodiment 3

[0074] A preparation method of a biocomposite filler for treating livestock and poultry wastewater, the steps are as follows:

[0075] (1) Wash and air-dry the wheat straw and soybean straw, cut them into granules with a length of 10-15 mm, and mix the wheat straw and soybean straw according to the mass ratio of 5:1 to obtain granular mixed straw;

[0076] (2) heating and pyrolyzing the above-mentioned granular mixed straw in anaerobic or oxygen-free environment, the pyrolysis temperature is 310° C., the pyrolysis time is 0.5 hour, and cooling after pyrolysis to obtain the pyrolyzed mixed straw;

[0077] (3) Weighing diammonium phosphate and water configuration concentration is 120g / L (NH 4 ) 2 HPO 4 Solution (the amount of solution can submerge the mixed stalks, the present embodiment has configured 100kg of solution, and mixed stalks have prepared 240kg);

[0078] (4) The mixed straw after pyrolysis in step (2) is put into the (NH 4 ) 2 HPO 4 In the solution, shake for...

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Abstract

The invention discloses a biological composite filler for treating livestock wastewater, and a preparation method and application of the biological composite filler, and belongs to the field of treatment of livestock breeding wastewater. The preparation method comprises the following steps: (1) washing, air-drying and cutting wheat straws and soybean straws; (2) heating the mixed straws for pyrolysis; (3) preparing an (NH4)2HPO4 solution; (4) feeding the mixed straws into the (NH4)2HPO4 solution; (5) heating willow blocks for pyrolysis; (6) mixing the straws, wheat starch and wheat bran with stirring; (7) impregnating and drying biomass blocks; (8) compressing the biomass blocks into bulks to obtain the biological composite fillers by using a compressor. After the biological composite fillers are fed into the livestock wastewater, macromolecular nutrient elements such as phytate phosphorus, residual veterinary drugs, urea and suspended matters and metallic elements such as copper, iron and zinc in the wastewater can be greatly adsorbed, so that the problem of difficulty in the treatment of the livestock wastewater is effectively solved.

Description

technical field [0001] The invention belongs to the field of livestock and poultry breeding wastewater treatment; specifically, it relates to a biological composite filler for treating livestock and poultry wastewater and its preparation method and application, more specifically, it refers to the high ammonia nitrogen load of livestock and poultry breeding wastewater, and the water is not easy to discharge To reach the standard, there are many residual drugs and high treatment cost, and a biocomposite filler that can be treated to make it reach the standard is provided. Background technique [0002] In recent years, with the development of intensive aquaculture and large-scale aquaculture in our country, a large number of farms have appeared in rural areas. The wastewater discharged by these farms is large and concentrated every day, and the wastewater contains a large amount of pollutants, such as heavy metals, residual Veterinary drugs and a large number of pathogens have ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00C02F3/10
CPCC02F3/00C02F2003/001C02F2103/20Y02W10/10
Inventor 丁丹丹许旋徐震霖
Owner 贵州都匀市黔昌畜牧发展有限责任公司
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